A sundae with 1 topping is $0.99, with 4 toppings is $1. 74, and with 7 toppings is $2.49. Which equation represents the cost of the sundae, c, given number of toppings, t?
A. C=0.25 +0.74
B. c = 0.74 +0.25
C. c = 0.75t +0.99
D. c = 0.99 + 0.75

The average daily maximum temperature for laura’s hometown can be modeled by the function f(x)=4.5sin(πx/6)+11.8 , where f(x) is the temperature in °c and x is the month. x = 0 corresponds to january.what is the average daily maximum temperature in may? round to the nearest tenth of a degree if needed.use 3.14 for π .